JPS6478437A - Optical system information recording device - Google Patents

Optical system information recording device

Info

Publication number
JPS6478437A
JPS6478437A JP63027506A JP2750688A JPS6478437A JP S6478437 A JPS6478437 A JP S6478437A JP 63027506 A JP63027506 A JP 63027506A JP 2750688 A JP2750688 A JP 2750688A JP S6478437 A JPS6478437 A JP S6478437A
Authority
JP
Japan
Prior art keywords
recording
pulse
laser beam
mark
correspondence
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP63027506A
Other languages
Japanese (ja)
Other versions
JP2650940B2 (en
Inventor
Yasushi Suketa
Masahiro Oshima
Atsushi Saito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of JPS6478437A publication Critical patent/JPS6478437A/en
Application granted granted Critical
Publication of JP2650940B2 publication Critical patent/JP2650940B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10502—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing characterised by the transducing operation to be executed
    • G11B11/1053—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing characterised by the transducing operation to be executed to compensate for the magnetic domain drift or time shift
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0045—Recording
    • G11B7/00456—Recording strategies, e.g. pulse sequences
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085—Pits

Abstract

PURPOSE:To cancel the influence of heat conduction from a mark which has been recorded immediately before and to always and accurately record the recording mark of an objective shape in an objective position by controlling power in the tip part of a laser beam pulse in correspondence to an interval with the preceding laser beam pulse. CONSTITUTION:Recording data (recording pulse) 1 passes through a delay circuit 3 and drives an analogue switch 4. The pulse signal 12 of a height corresponding to the interval of the recording pulse 1 is generated in both end of a resistance R2, is printed in a transistor TR1 through a differential circuit 13 and controls the size of a recording current supplied to a semiconductor laser LD. When the laser beam pulse is radiated on a recording medium in correspondence to the recording pulse 1, power in the tip part of the laser beam pulse is controlled in correspondence to the interval with the preceding laser beam pulse. Thus, the influence of heat conduction from the mark which has been recorded immediately before is cancelled and the position and shape of the recording mark can be controlled in high precision irrespective of the pattern of the recording pulse.
JP63027506A 1987-02-12 1988-02-10 Optical information recording device Expired - Lifetime JP2650940B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2824887 1987-02-12
JP62-28248 1987-02-12
JP13972387 1987-06-05
JP62-139723 1987-06-05

Publications (2)

Publication Number Publication Date
JPS6478437A true JPS6478437A (en) 1989-03-23
JP2650940B2 JP2650940B2 (en) 1997-09-10

Family

ID=26366302

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63027506A Expired - Lifetime JP2650940B2 (en) 1987-02-12 1988-02-10 Optical information recording device

Country Status (4)

Country Link
US (1) US4894816A (en)
JP (1) JP2650940B2 (en)
KR (1) KR910003460B1 (en)
DE (1) DE3804240A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6188658B1 (en) 1996-12-26 2001-02-13 Hitachi, Ltd. Information recording apparatus
US6628594B1 (en) 1999-03-05 2003-09-30 Lg Electronics Inc. Device and method for generating writing signal for optical recording medium by controlling writing power levels for different pit portions
US6781937B2 (en) 1998-01-21 2004-08-24 Yamaha Corporation Optical disk recording method and device

Families Citing this family (36)

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Publication number Priority date Publication date Assignee Title
JP2702923B2 (en) * 1987-04-24 1998-01-26 株式会社日立製作所 Information recording method and information recording device
US5291470A (en) * 1988-03-28 1994-03-01 Matsushita Electric Industrial Co., Ltd. Optical information recording method
JPH0294132A (en) * 1988-09-30 1990-04-04 Toshiba Corp Optical output controller
US5126994A (en) * 1988-11-29 1992-06-30 Sony Corporation Method and apparatus for controlling and detecting recording laser beam
JP2708859B2 (en) * 1989-03-16 1998-02-04 三洋電機株式会社 Optical disk recording device
JPH0810490B2 (en) * 1989-03-20 1996-01-31 富士通株式会社 Optical disk information writing control method and apparatus therefor
JP2775009B2 (en) * 1989-06-20 1998-07-09 ソニー株式会社 Optical recording device
DE69030656T2 (en) * 1989-12-20 1997-10-23 Sony Corp OPTICAL RECORDING DEVICE
US5513167A (en) * 1989-12-20 1996-04-30 Sony Corporation Optical recording apparatus
US5491678A (en) * 1990-05-25 1996-02-13 Hitachi, Ltd. Method and apparatus for recording/reproducing information data in a two-dimensional format
JP2852792B2 (en) * 1990-07-05 1999-02-03 三菱電機株式会社 Optical disk drive
US5235590A (en) * 1991-03-20 1993-08-10 Fujitsu Limited Read out apparatus for reading out information from magneto-optic disk
JP2850966B2 (en) * 1991-08-02 1999-01-27 シャープ株式会社 Magneto-optical recording device
JPH0573981A (en) * 1991-09-13 1993-03-26 Nikon Corp Magneto-optical recording method enabling overwrite with power margin enlarged and magneto-optical recorder used for the same
JP2578312B2 (en) * 1991-12-27 1997-02-05 富士通株式会社 Magneto-optical overwrite recording method with improved C / N ratio and magneto-optical recording apparatus for executing such magneto-optical overwrite recording method
EP0571016B1 (en) * 1992-05-13 1997-09-17 Koninklijke Philips Electronics N.V. Method of and device for recording information on a record carrier having a recording layer which, when heated, undergoes an optically detectable change
TW227614B (en) * 1992-05-13 1994-08-01 Philips Electronics Nv
JPH0684224A (en) * 1992-09-07 1994-03-25 Hitachi Ltd Recording control method for magneto-optical disk
JP2618571B2 (en) * 1992-09-24 1997-06-11 富士通株式会社 Data reproduction circuit for magneto-optical disk
EP0594406B1 (en) * 1992-10-20 1998-12-16 Nikon Corporation Optical recording method and apparatus
JPH06267123A (en) * 1992-10-28 1994-09-22 Nikon Corp Method and device for deciding recording condition, method and device for magneto-optical recording by overwriting on magneto-optical disk with heat insulation system and pulse train system
US5400313A (en) * 1992-11-09 1995-03-21 International Business Machines Corporation Optical data storage system and method with reduced heat buildup
JPH07131089A (en) * 1993-11-08 1995-05-19 Nikon Corp Laser power monitor circuit
JP3691861B2 (en) * 1994-09-14 2005-09-07 株式会社東芝 Optical pulse width control device for optical disk
EP0957475B1 (en) * 1996-12-20 2009-03-04 Panasonic Corporation Optical recording method and optical recorder
JP3323782B2 (en) * 1997-09-09 2002-09-09 株式会社日立製作所 How information is recorded
TW468177B (en) * 1998-08-04 2001-12-11 Hitachi Ltd Data storage method, data storage medium and data storage recording device
TW518580B (en) 2000-05-11 2003-01-21 Koninkl Philips Electronics Nv Methods and devices for recording marks on a recording surface of an optical record carrier
US7366074B2 (en) 2000-05-11 2008-04-29 Koninklijke Philips Electronics N. V. Methods and devices for recording marks on a recording surface of an optical record carrier
JP4419285B2 (en) * 2000-06-19 2010-02-24 ソニー株式会社 Optical disc recording apparatus and optical disc recording method
JP2002117542A (en) * 2000-10-05 2002-04-19 Pioneer Electronic Corp Multi-layer rotary recording medium, and its recording/ reproducing method and recording/reproducing device
JP4560251B2 (en) * 2001-09-10 2010-10-13 パイオニア株式会社 Information recording apparatus and information recording method
US20030117910A1 (en) * 2001-12-21 2003-06-26 Yasuo Oishi Optical disk drive and servo control method
KR100677104B1 (en) * 2002-05-20 2007-02-01 삼성전자주식회사 Optical recording medium which power information of erase pattern is recorded
US6954415B2 (en) * 2002-07-03 2005-10-11 Ricoh Company, Ltd. Light source drive, optical information recording apparatus, and optical information recording method
US7193691B2 (en) * 2002-11-19 2007-03-20 Bae Systems Information And Electronic Systems Integration Inc. Active sensor receiver detector array for countermeasuring shoulder-fired missiles

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58177534A (en) * 1982-04-08 1983-10-18 Matsushita Electric Ind Co Ltd Optical recording device
JP2523464B2 (en) * 1982-04-16 1996-08-07 株式会社日立製作所 Driving method for semiconductor laser
US4648085A (en) * 1983-05-12 1987-03-03 Nec Corporation Optical information recording and reading apparatus with error correction
JPS60247827A (en) * 1984-05-24 1985-12-07 Nec Corp Optical storage and writing circuit
US4646103A (en) * 1985-03-20 1987-02-24 Hitachi, Ltd. Optical recording method
US4680594A (en) * 1986-04-02 1987-07-14 Optotech, Inc. Single beam direct read during write and write protect system for use in an optical data storage system
JPH0625032A (en) * 1991-01-16 1994-02-01 Yutaka Tamaura Production of resource energy gas
JPH0687440A (en) * 1992-09-09 1994-03-29 Murata Mach Ltd Article transporting device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6188658B1 (en) 1996-12-26 2001-02-13 Hitachi, Ltd. Information recording apparatus
US6404716B1 (en) 1996-12-26 2002-06-11 Hitachi, Ltd. Information recording apparatus
US6430132B1 (en) 1996-12-26 2002-08-06 Hitachi, Ltd. Information recording apparatus
US6512726B2 (en) 1996-12-26 2003-01-28 Hitachi, Ltd. Information recording apparatus
US6529466B2 (en) 1996-12-26 2003-03-04 Hitachi, Ltd. Information recording apparatus
US6781937B2 (en) 1998-01-21 2004-08-24 Yamaha Corporation Optical disk recording method and device
US6628594B1 (en) 1999-03-05 2003-09-30 Lg Electronics Inc. Device and method for generating writing signal for optical recording medium by controlling writing power levels for different pit portions

Also Published As

Publication number Publication date
JP2650940B2 (en) 1997-09-10
KR910003460B1 (en) 1991-05-31
US4894816A (en) 1990-01-16
KR880010391A (en) 1988-10-08
DE3804240A1 (en) 1988-08-25
DE3804240C2 (en) 1989-09-21

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